How the heck did we get on the subject of hammers?
Because I’ve got
The Hammer Of The Gods right here:
Meantime, I only change strings when I have to, because I hate doing it. But my hands are pretty dry, I rotate among them, and I keep the guitars cased when not in use.
For cleaning, as others have mentioned, I use a clean, damp microfiber cloth every so often, and dry with another clean one. Every once in a blue moon - like, maybe every other year or less - I’ll use the PRS cleaner that puts on a nice shine with no abrasives after cleaning the guitar with the damp microfiber.
I think I did that on one of my guitars three years ago.
I only use abrasive polish if the guitar gets a swirl mark or scratch (most polishes have mild abrasives that remove swirl marks, etc.). The less you use abrasive polishes, the better, as far as I’m concerned.
In any case, my guitars look brand new, and are clean and shiny with minimal maintenance. I’m fussy.
As to fretboards, I’ll clean them with so-called lemon oil if they’re groty, and then wipe the stuff off, and seal the fretboard with a wood polish as PRS recommends. That happens extremely rarely, but as I said, I have very dry hands so no issues. ‘Lemon oil’ is actually naphtha (lighter fluid). It doesn’t add oil, it evaporates oil, that’s why they use it in dry cleaning.
The fretboards get shinier-looking after using naphtha, but all it’s done is leech oil out of the wood and bring it to the surface. It’s really not all that good for the wood.